TUNE UP KERNEL

let’s become root to change the kernel$ sudo -s
see how much open files the kernel can retreive$ ulimit -a
assume 1024 for 0.5 Gig (512 MB) RAM so for 12 Gig change it to 24576$ ulimit -n 24576
check the limit$ ulimit -Hn

NGINX TUNEUP

worker_connections tells our worker processes how many people can simultaneously be served by Nginx
The default value is 768; however, considering that every browser usually opens up at least 2 connections/server, this number can half.$ sudo vi /etc/nginx/nginx.conf

INSTALL UNOCONV

on Web1 and Web2

unoconv version not supported
if this test fails, it indicates a potential problem
The version of unoconv you have installed is not supported. Moodle’s assignment grading feature requires version 0.7 or higher.